US Bridges

SR4023 over Limestone Run

Fair

Armstrong County, Pennsylvania · Tarrtown · Structure no. 000000000043135

Built
2005
20 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
1,355
2023 count
Owner
State
State Highway Agency

About this bridge

SR4023 over Limestone Run is a prestressed concrete box beam or girders - multiple carrying SR4023 over Limestone Run in Armstrong County, Pennsylvania. It was built in 2005, so it is 20 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,355 vehicles a day, roughly 27% of them trucks, projected to reach 1,821 by 2032. The structure is 113 ft (34.4 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR4023
CrossesLimestone Run
LocationTarrtown
RouteState Highway 0
CountyArmstrong County
StatePennsylvania
Coordinates40.85618, -79.50825
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating58 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length113 ft (34.4 m)
Longest span113 ft (34.4 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,355 (2023)
Projected traffic1,821 by 2032
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR4023 over Limestone Run built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR4023 over Limestone Run in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does SR4023 over Limestone Run carry?

About 1,355 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is SR4023 over Limestone Run?

The structure is 113 ft (34.4 m) long with a longest span of 113 ft (34.4 m) and a deck 32 ft wide.

Who owns SR4023 over Limestone Run?

It is owned by the State Highway Agency.